code: def setup_function():
      gc.collect()
  
file_path: cugraph/python/cugraph/cugraph/tests/sampling/test_random_walks.py
imports: import gc
  import random
  import pytest
  import networkx
  import cudf
  import cugraph
  from cudf.testing import assert_series_equal
  from cugraph.utilities import ensure_cugraph_obj_for_nx
  from cugraph.testing import SMALL_DATASETS, DEFAULT_DATASETS
label_desc: Use image node_id 1 for calling a global function with example usage: setup_function() without return types